Home / 5,316.19-7,971.68-3,209.99

Finding the Fourth Proportional to 5,316.19, 7,971.68 and 3,209.99

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Solution

The fourth proportional to 5,316.19, 7,971.68 and 3,209.99 is: 4,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.19 : 7,971.68 = 3,209.99 : x
  2. Step 2: Convert to fraction form
    5,316.19/7,971.68 = 3,209.99/x
  3. Step 3: Cross multiply
    5,316.19x = 7,971.68 × 3,209.99
  4. Step 4: Simplify right side
    5,316.19x = 25,588,981.25
  5. Step 5: Solve for x
    x = 25,588,981.25/5,316.19
  6. Step 6: Final answer
    x = 4,813.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.